Does the formatter validate JSON?

Yes. If the JSON is invalid, an error message shows the location of the syntax error.

Can I minify JSON as well as beautify it?

Yes. You can switch between pretty-print and minified output.

Is my data sent to a server?

No. All processing runs securely in your browser without uploading.

Developer

JSON Formatter & Validator

Beautify, minify, and validate JSON instantly in your browser. Nothing is sent to a server.

Input JSON

Output

Output appears here…

Indent:

Supports JSON5-style detection. All processing is local — your data never leaves the browser.

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